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We’re experienced in Energy Benchmarking, Modeling, and Green Building Certifications.

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D3G has perfected the Environmental Site Assessment process over our 30-year history.
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About Us
Due Diligence Services
Capital Needs Assessments

This assesment is an evaluation of the physical condition of a property.

HEROS Environmental Review

We help manage & store supporting
documentation for Environmental Reviews.

Energy & Sustainability

We’re experienced in Energy Benchmarking, Modeling, & Green Building Certifications.

Environmental Services

D3G has perfected the Environmental Site Assessment process over our 30-year history.

Architectural & Cost Review

We provide cost conclusions essential for new construction & substantial rehabilitation.
Consulting Services
Affordable Housing Consulting

Learn more about D3G’s roots, growth, & industry innovation.

Environmental Consulting

Learn more about D3G’s roots, growth, & industry innovation.

Building Evaluation Consulting

We’re experienced in Energy Benchmarking, Modeling, & Green Building Certifications.

Energy & Sustainability Consulting

D3G has perfected the Environmental Site Assessment process over our 30-year history.
Our Work
Case Studies

Learn more about our notable projects & community work.

D3G Gives Back

We believe in social responsibility within our workspace & communities

Blog

Read up on the latest industry news, insights, & team updates.
Leadership
Careers
Open Positions

Interested in working at D3G? Explore our open positions.

Benefits

Learn more about D3G’s employee benefits & unique perks.

Core Values

Our New D3G Core Values for 2022 & Beyond

Watch the video below for a special message from Our Founder Rob Hazelton.

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5 Mistakes to Avoid When Assembling Plans and Specifications

Learn five common mistakes to avoid when assembling construction documents. D3G’s experts share insights to improve coordination,

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